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论文类型：期刊论文
发表时间：2011-12-01
发表刊物：COMPUTERS & MATHEMATICS WITH APPLICATIONS
收录刊物：Scopus、SCIE、EI
卷号：62
期号：11
页面范围：4015-4020
ISSN号：0898-1221
关键字：Parameter identification; Movable inner boundary; Distributed parameter coupled system; Non-overlapping domain decomposition; Arctic sea ice
摘要：In this paper, we establish a distributed parameter coupled system concerning Arctic sea ice temperature field, in which the ice thickness is regarded as a movable inner boundary of the space domain. The existence and continuity of the weak solution to the coupled system are proved. According to the measured data, we establish a parameter identification model with the ice thickness as control variable and the coupled system as constraints. Finally, an optimization algorithm is constructed on the basis of non-overlapping domain decomposition method and semi-implicit difference scheme. Through numerical calculation, we obtain the characteristics of the ice thicknesses and the ice temperatures. (C) 2011 Elsevier Ltd. All rights reserved.